After over a year of searching I finally found it today. It is on the compilation "Super Italia Vol.33" and I just bought the only copy being sold on Amazon currently.
This song was the first release of Fantomius feat.D@ny85..you could find it in several compilations but there is not any official EP or single CD. I know it because i'm Fantomius. Cheers.
This song is a remix of Ennio Morricone - wild horde (from movie: My Name Is Nobody) and is called: Kosmonova vs C-Star - The Daydream Giorno just uses this in his Mashup.